553BTechnical specifications
A.2 CPU 1211C
S7-1200 Programmable controller
668
System Manual, 11/2011, A5E02486680-05
Technical data
CPU 1211C AC/DC/Relay and
DC/DC/Relay
CPU 1211C
DC/DC/DC
Maximum relay switching frequency
1 Hz
--
Switching delay (Qa.0 to Qa.3)
10 ms max.
1.0 μs max., off to on
3.0 μs max., on to off
Pulse Train Output rate
(Qa.0 and Qa.2)
Not recommended
1
100 KHz max.,
2 Hz min.
2
Lifetime mechanical (no load)
10,000,000 open/close cycles
--
Lifetime contacts at rated load
100,000 open/close cycles
--
Behavior on RUN to STOP
Last value or substitute value
(default value 0)
Last value or substitute value
(default value 0)
Number of outputs on simultaneously
4
4
Cable length (meters)
500 m shielded,
150 m unshielded
500 m shielded,
150 m unshielded
1
For CPU models with relay outputs, you must install a digital signal board (SB) to use the pulse outputs.
2
Depending on your pulse receiver and cable, an additional load resistor (at least 10% of rated current) may improve
pulse signal quality and noise immunity.
A.2.3
Analog inputs
Table A- 17 Analog inputs
Technical data
Description
Number of inputs
2
Type
Voltage (single-ended)
Range
0 to 10 V
Full-scale range (data word)
0 to 27648
Overshoot range (data word)
27,649 to 32,511
See the table for measurement ranges of the analog inputs for voltage
(Page 669).
Overflow (data word)
32,512 to 32,767
Resolution
10 bits
Maximum withstand voltage
35 VDC
Smoothing
None, Weak, Medium, or Strong
See the table for step response (ms) for the analog inputs of the CPU
(Page 669).
Noise rejection
10, 50, or 60 Hz
Impedance
≥100 KΩ
Isolation (field side to logic)
None
Accuracy (25°C / 0 to 55°C)
3.0% / 3.5% of full-scale
Cable length (meters)
100 m, shielded twisted pair